Compass Therapeutics, Inc.
CMPX- Exchange
- Nasdaq
- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001738021
Insider trades, last 90 days
1 buy · 0 sells
- Bought $2.85K
- Open-market purchases (P) and sales (S), counted by Form 4 filing.
13F holders, Q2 2026
215
- +14 vs. Q1 2026
- Total value $363.36M
Superinvestors holding CMPX
0
- None of the superinvestors held CMPX at the end of Q2 2026.
Price chart
Latest insider trades
View all: Latest insider tradesOpen-market purchases and sales by CMPX insiders, newest first.
| Filed (ET) | Trade date | Insider | Transaction | Shares | Avg price | Value | Shares after | Holding change | Filing |
|---|---|---|---|---|---|---|---|---|---|
| Sep 25, 20268:01 AM ET | Sep 24, 2026 | Lerner NeilChief Accounting Officer | PPurchaseCommon Stock | +2.5K | $1.14 | +$2.85K | 400K | +0.6% | SEC |
| Apr 30, 2026Amended | Apr 29, 2026 | Lerner NeilChief Accounting Officer | PPurchaseCommon Stock | +15K | $1.89 | +$28.35K | 397.5K | +3.9% | SEC |
| Apr 30, 2026Amended | Apr 29, 2026 | Anderman JonathanGeneral Counsel | PPurchaseCommon Stock | +25K | $1.89 | +$47.25K | 196K | +14.6% | SEC |
| May 27, 2025 | May 27, 2025 | Schuetz Thomas J.CHIEF EXECUTIVE OFFICER | PPurchaseCommon Stock | +10K | $2.11 | +$21.1K | 6.48M | +0.2% | SEC |
| Apr 11, 20257:24 PM ET | Apr 9, 2025 | ORBIMED ADVISORS LLC and 2 othersDirector, 10% Owner | SSaleCommon Stock | −3.57M | $1.59 | −$5.68M | 0 | −100.0% | SEC |
Top 5 13F holders, Q2 2026
View all: Top 5 13F holders, Q2 2026The largest institutional positions in CMPX at the end of Q2 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| TANG CAPITAL MANAGEMENT LLC | 17,990,782 | $39.4M | 1.79% | +1,199,973+7.1% | Added |
| ORBIMED ADVISORS LLC | 15,219,994 | $33.33M | 0.63% | 00.0% | Unchanged |
| SUVRETTA CAPITAL MANAGEMENT, LLC | 14,101,159 | $30.88M | 0.65% | −206,220−1.4% | Reduced |
| BlackRock, Inc. | 11,281,781 | $24.71M | 0.00% | +1,775,701+18.7% | Added |
| STATE STREET CORP | 9,953,653 | $21.8M | 0.00% | +3,258,677+48.7% | Added |